Manufacturing method of glucose

A manufacturing method, glucose technology, applied in the field of biochemistry, can solve the problems of poor removal of impurities, reduced service life of resin, low product quality and yield, and achieve the effect of improving utilization rate, prolonging service life and good quality

Active Publication Date: 2012-07-18
SANDA FILM SCI & TECH XIAMEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] This production process has the following disadvantages: 1. During the plate-frame or drum filtration process, diatomite and filter residue are continuously discharged and cannot be recycled, and impurities such as protein and fat in the sugar solution cannot be removed well, and the impurities will be Entering the follow-up ion exchange process will bring pollution to the resin and reduce the service life of the resin; second, the regeneration of the resin needs to consume a large amount of acid-base and water, and will produce a large amount of acid-base wastewater, which is seriously polluted; third, the main end product

Method used

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  • Manufacturing method of glucose
  • Manufacturing method of glucose
  • Manufacturing method of glucose

Examples

Experimental program
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Example Embodiment

[0036] Example 1 Obtaining Saccharification Liquid (Prior Art)

[0037] Starch liquefaction: Mix starch and water to prepare a liquid starch emulsion for glucose production. The starch content accounts for 20%-35% of the total mass of the liquid starch emulsion. Then it is sterilized to prepare a starch emulsion, and then to the starch emulsion Add high-temperature amylase to the liquefaction ejector for one high-pressure injection, and then add enzymes for the second time to continue the liquefaction reaction, and hydrolyze into a liquefied starch solution with a glucose value of 14%-25%;

[0038] Saccharification: Cool the liquefied starch solution with a glucose value of 14%-25% prepared in the previous step to 35-45°C, then add compound saccharification enzyme and enzymatically hydrolyze into glucose saccharification solution at this temperature. The saccharification liquid is stored at a height of about 7.5m and a volume of 120m 3 In the saccharification tank, the insoluble pr...

Example Embodiment

[0040] Example 2 One of membrane filtration and impurity removal

[0041] In this embodiment, the microfiltration membrane adopts Asahi Kasei hollow membrane UMP-153, the UMP-153 membrane filament has an inner diameter of 2.6 mm and a pore size of 0.2 um. It can be seen from Table 1 that under the operating conditions of 2.4 bar, the concentration is 5-7 times, the membrane basically does not intercept the product, the flux is maintained between 130LMH-210LMH, and combined image 3 It can be seen that the membrane operation is very stable.

[0042] Table 1 UMP-153 membrane operating data

[0043] Batch

Example Embodiment

[0044] Example 3 Membrane filtration and impurity removal

[0045] In this embodiment, the Asahi Kasei hollow membrane USP-143 is used as the microfiltration membrane. The USP-143 membrane filament has an inner diameter of 1.4 mm and a pore size of 0.1 um. It can be seen from the membrane operating data in Table 2 that the average inlet pressure is about 1.4 bar, the average outlet pressure is about 1.1 bar, and the circulating flow rate is between 1600-2000m3 / h and the temperature is between 42-62℃. About 6 times, there is basically no interception in the glucose production process, the membrane flux is between 150-160LMH; combined with the membrane flux change curve, the membrane flux fluctuates between 160LMH, and the repeatability of 3 batches is good , Indicating that the membrane is running very stable; in addition, from the filtrate test data in Table 5, it can be seen that when the solid content of the feed liquid is high, the light transmittance of the filtrate can basic...

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Abstract

The invention discloses a manufacturing method of glucose, comprising the following steps of: (1) liquefying starch: by taking starch as the raw material, liquefying under the action of a liquefying enzyme after size mixing, and then, a glucose saccharified liquid under the action of a saccharifying enzyme; (2) filtering and decontaminating the saccharified liquid by a membrane filtering unit to obtain filtrate, wherein a filtering membrane has the aperture of 1-200nm or the molecular weight cut-off of 10-500kd; (3) carrying out continuous ion exchange on the filtrate by using a moving bed, removing salts to obtain a purified liquid; and (4) filtering the purified liquid by using a nanofiltering membrane to obtain pharmaceutical-grade glucose, wherein a concentrated solution is used for producing daily chemical alcohol or polysaccharose products. Continuous production is adopted in the manufacturing method, and therefore, the production efficiency is high.

Description

technical field [0001] The invention relates to the field of biochemistry, in particular to a method for producing glucose. Background technique [0002] Glucose is an important monosaccharide and an important basic chemical medicine, as well as a raw material for many compounds. The production of glucose has experienced the development process of acid method, acid enzyme method and double enzyme method. see figure 1 , the existing production process for producing glucose is as follows: use starch as raw material, liquefy under the action of liquefying enzyme after pulping, then saccharify through the action of glucoamylase, finally form glucose syrup with DX95%, and then use diatom Soil filtration method enters plate frame or drum for filtration to remove residual starch and suspended matter, then adopts fixed bed ion exchange process, mainly uses a large amount of anion and cation exchange resin to remove the salt in the sugar solution, and finally uses heavy The crysta...

Claims

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Application Information

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IPC IPC(8): C12P19/14B01D61/14B01J47/02B01J47/028
Inventor 林雄水林丽华杜明华李硕林陈建木方富林蓝伟光李斌付吉明
Owner SANDA FILM SCI & TECH XIAMEN
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